Each reporting year, your organization should measure all the fuels and energy being consumed by your assets. By specifying the ownership and boundary of each asset, you can measure all the GHG types across Scope 1 after applying the correct allocation.
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Greenhouse gas (GHG) emissions can be categorized into three different scopes based on the source of the emissions. These are known as Scope 1, Scope 2, and Scope 3 emissions - which are used to understand and measure a company's carbon footprint and to develop a strategy to reduce GHG emissions. It is important for companies to measure and reduce all three types of emissions to effectively mitigate their impact on climate change.
The reporting organization shall report the following information:
a. Gross direct (Scope 1) GHG emissions in metric tons of CO2 equivalent.
[…] disclose its absolute gross greenhouse gas emissions generated during the reporting period, expressed as metric tonnes of CO2 equivalent […] classified as […] Scope 1 greenhouse gas emissions […]
CDP C6.1 - What were your organization’s gross global Scope 1 emissions in metric tons CO2e?
CDP C7.7a - Break down your gross Scope 1 and Scope 2 emissions by subsidiary.
GHG scope 1 emissions generated by the asset (ghg_abs_s1_w) as well as the Covered floor area where GHG scope 1 emissions data is collected (ghg_cov_s1_w). Total floor area where GHG scope 1 emissions can exist (ghg_tot_s1_w) including GHG scope 1 emissions generated by the outdoor spaces associated with the asset (ghg_abs_s1_o).
Scope 1 emissions are direct greenhouse (GHG) emissions that occur from sources that are controlled or owned by an organization. These include GHG emissions associated with fuel combustion in both stationary and mobile sources, such as in boilers, furnaces, vehicles, as well as pipelines and other infrastructure.
Direct GHG emissions from stationary (non-transport) combustion of fossil fuels at a facility, such as combustion within boilers, turbines, process heating, but also end-uses like space or water heating, and appliances.
Direct GHG emissions associated with fuel combustion in owned or operated mobile sources, such as on-road vehicles (passenger vehicles, trucks) and off-road vehicles (planes, ships) or equipment (construction, agricultural, etc).
Direct GHG emissions from refrigeration and air conditioning systems, fire suppression systems, and the purchase and release of industrial gasses for certain industries.
| Chemical | 100-Year Global Warming Potentials |
|---|---|
| HFC-23 | 14,800 |
| HFC-32 | 675 |
| HFC-125 | 3,500 |
| HFC-134a | 1,430 |
| HFC-143a | 4,470 |
| HFC-152a | 124 |
| HFC-227ea | 3,220 |
| HFC-236fa | 9,810 |
| Chemical | 100-Year Global Warming Potentials |
|---|---|
| HFC-23 | 14,800 |
| HFC-125 | 3,500 |
| HFC-134a | 1,430 |
| HFC-227ea | 3,220 |
| HFC-236fa | 9,810 |
| PFC-143 (CF4) | 7,390 |
| PFC-31-10 (C4F10) | 8,860 |
| Chemical | 100-Year Global Warming Potentials |
|---|---|
| HFC-134a | 1,430 |
| HFC-152a | 124 |
| HFC-227ea | 3,220 |
| Chemical | 100-Year Global Warming Potentials |
|---|---|
| HFC-245fa | 1,030 |
| HFC-365mfc | 794 |
| HFC-43-10mee | 1,640 |
| Chemical | 100-Year Global Warming Potentials |
|---|---|
| HFC-365mfc | 794 |
| HFC-43-10mee | 1,640 |
| PFC-51-144 (C6F14) | 9,300 |
| Chemical | 100-Year Global Warming Potentials |
|---|---|
| HFC-134a | 1,430 |
| HFC-152a | 124 |
| HFC-227ea | 3,220 |
| HFC-245fa | 1,030 |
| HFC-365mfc | 794 |
| Chemical | 100-Year Global Warming Potentials |
|---|---|
| HFC-134a | 1,430 |
| HFC-227ea | 3,220 |
| PFC-116 (C2F6) | 12,200 |
Direct GHG emissions from various sectors also have process-related sources that are specific to various industrial processes and material inputs, such as waste management, agriculture, oil and gas, manufacturing etc.
Scope 1 Emissions - Direct greenhouse gas (GHG) emissions that occur from sources that are owned or controlled by the reporting entity. Examples of Scope 1 emissions include emissions from combustion of fossil fuels in boilers, furnaces, vehicles, or other equipment, emissions from chemical processes, and emissions from refrigerants. In order to reduce SCOPE 1 emissions, such as natural gas burned in a boiler or gasoline/diesel/fuel oil used in vehicles or equipment, you can:
- Implement energy efficiency projects
-
Incorporate electric vehicles (EVs) into your fleet
-
Purchase renewable natural gas (biogas)
- Procure carbon offsets
Check out our video here for Sustainability 101.
To learn more about Scope 1, 2, and 3, take a look at our video below.
To learn more, check out our website Constellation GHG.